Invention Grant
- Patent Title: Apparatus and method for obtaining T2 distribution
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Application No.: US15546173Application Date: 2016-04-14
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Publication No.: US10338268B2Publication Date: 2019-07-02
- Inventor: Songhua Chen , Wei Shao
- Applicant: HALLIBURTON ENERGY SERVICES, INC.
- Applicant Address: US TX Houston
- Assignee: HALLIBURTON ENERGY SERVICES, INC.
- Current Assignee: HALLIBURTON ENERGY SERVICES, INC.
- Current Assignee Address: US TX Houston
- Agency: Polsinelli PC
- International Application: PCT/US2016/027505 WO 20160414
- International Announcement: WO2017/180123 WO 20171019
- Main IPC: G01V3/32
- IPC: G01V3/32 ; G01R33/44 ; G01N24/08

Abstract:
A method for determining earth formation properties including a data acquisition tool and a data acquisition processor coupled with NMR sensors and a first memory; transmitting earth formation fluid data to a data processing unit comprising a processor and a second memory. Obtaining a fully polarized state echo train (EFR) and a partially polarized state echo train burst (EPR); inverting the EPR to obtain an apparent transverse relaxation time (T2app) distribution; truncating the T2app distribution by discarding the partially polarized state echo train data; completing a forward model of the EPR to obtain an additional echo train burst (EFR_B), performing a second inversion of the data set; and determining earth formation fluid properties.
Public/Granted literature
- US20180120471A1 APPARATUS AND METHOD FOR OBTAINING T2 DISTRIBUTION Public/Granted day:2018-05-03
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